Abstract
Treatment of 3-tert-butyl-8-R-pyrimido[4′,5′:3,4]pyrazolo[5,1-c][1,2,4]triazine-4,10(6H,9H)-diones with diphosphorus pentasulfide gave 3-tert-butyl-8-R-pyrimido[4′,5′:3,4]pyrazolo[5,1-c][1,2,4]triazine-4,10(6H,9H)-dithiones whose hydrazinolysis afforded 3-tert-butyl-10-hydrazinyl-8-R-pyrimido[4′,5′:3,4]pyrazolo[5,1-c][1,2,4]triazine-4(6H)-thiones. 3-tert-Butyl-10-hydrazinylpyrimido[4′,5′:3,4]pyrazolo[5,1-c][1,2,4]-triazine-4(6H)-thione reacted with sodium nitrite in phosphoric or polyphosphoric acid yielding 10-azido-3-tert-butylpyrimido[4′,5′:3,4]pyrazolo[5,1-c][1,2,4]triazine-4(6H)-thione and 3-tert-butyltetrazolo[1″,5″:3′,4′]pyrimido[5′,6′:3,4]pyrazolo[5,1-c][1,2,4]triazin-4(12H)-one, respectively.
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Original Russian Text © L.M. Mironovich, A.Yu. Podol’nikova, 2015, published in Zhurnal Organicheskoi Khimii, 2015, Vol. 51, No. 3, pp. 411–414.
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Mironovich, L.M., Podol’nikova, A.Y. Synthesis and reactivity of 3-tert-butyl-8-r-pyrimido-[4′,5′:3,4]pyrazolo[5,1-c][1,2,4]triazine-4,10(6h,9h)-dithiones. Russ J Org Chem 51, 397–400 (2015). https://doi.org/10.1134/S1070428015030197
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DOI: https://doi.org/10.1134/S1070428015030197